As HotpotQA mainly consists of 2-hop questions which involve two relevant paragraphs, we follow the 2-hop selection strategy in [1]}.
For the first hop, it selects the paragraph with the highest scores among the paragraphs containing the same phrases as the question. Then the second-hop paragraph is extracted by hyperlinks from the first selected one. Two other paragraphs with the next highest scores are also selected to constitute the question-relevant context. For 2WikiMultiHopQA dataset with 2\(\sim \) 4 hop questions, we select five paragraphs with the highest scores and filter the other paragraphs from the context.
